Method _handleLayerInfo

src/common/mapping/WebMapV2.js:213–238

(mapInfo, _taskID)

    }

    _handleLayerInfo(mapInfo, _taskID) {
      mapInfo = this._setLayerID(mapInfo);
      this._mapInfo = mapInfo;
      this.layerAdded = 0;
      this.expectLayerLen = 0;
      const { layers, grid } = mapInfo;
      this._setExpectLayerLen(mapInfo);
      if (this.expectLayerLen === 0) {
        this._sendMapToUser(0, 0);
      }
      if (this._shouldLoadBaseLayer(mapInfo, this.layerFilter)) {
        this._initBaseLayer(mapInfo, () => {
          this._addLayerSucceeded();
        });
      }
      if (layers && layers.length !== 0) {
        let filterLayers = layers;
        if (typeof this.layerFilter === 'function') {
          filterLayers = layers.filter(this.layerFilter);
        }
        this._initOverlayLayers(filterLayers, _taskID);
      }
      if (grid && grid.graticule) {
        this._initGraticuleLayer(grid.graticule);
      }
    }

    _setExpectLayerLen(mapInfo) {
      if (this._shouldLoadBaseLayer(mapInfo, this.layerFilter)) {